Here is a list of all the postings Nigel Rice has made in our forums. Click on a thread name to jump to the thread.
|Thread: Chinese DRO opinions|
Nigel your link is for glass scales
Whoops! Thanks for your correction, they are indeed glass scales. I had spent many hours comparing suppliers and my eye locked onto the supply from Poland and ignored the detail.
I am still pleased with my buy though hate having to come to terms with old age and decling brain cells!
I took delivery of my Chinese 3 axis DRO for my mill yesterday and I am over the moon!
At £131.48 delivered through Poland - so no taruffs, duties or extra charges it seemd too good to be true. This was the complete kit with 5 micron magnetic scales.
I ordered in early January and was advised on ordering that there would be a delay due to Chinese New Year. I was advised of shipment and departure from Poland, the final carrier was DHL with a signed for delivery in perfect condition.
Everything sprung into life on powering up, (only snag being European plug that needed changing). The control panel is fitted to my mill and the X axis scale should be operational tomorrow.
The only downside is the sophistication of the control panel against a unit I was using some 30 years ago!
|Thread: How should I check a milling machine?|
I bought an Aciera F3, sight unseen, about 4 years ago and have not regretted it. The machine had been neglected and abused, main motor and coolant pump burnt out, about 12 collects, but all this was reflected in the price.
There is a users group **LINK**
that is very helpful and has detailed drawings of the machine on file.
I stripped my machine completely, a delight to work on and logically engineered. The bedways are well sized and showed little wear even after years of neglect. Someone had attempted to pump grease into the slideways! Gib strips required a little scraping and a good clean and repaint. Motor replaced with Chinese cheapo and VFD.
The Schaublin W20 collet syatem is a pain as the collets are expensive. I now have an adapter and use E32 collets. I enjoy using this robust machine, would sometimes like a larger table, quill, DRO, etc, but need to have something to dream about!
|Thread: Hello from the Lake District|
A possible solution would be to find someone locally with suitable machines! How local is Kendal to you?
Welcome to the forum Mark. I live in Kendal and have established my workshop behind my house. I have an Aciera F3 mill and have just installed my pride and joy, a Hardinge HLV lathe. You are welcome to call in.
|Thread: facing plastic rod|
My preference for all plastics is zero or negative rake on the tool - this will certainly prevent digging in and pulling the work from the chuck.
In order to prevent the continuous ribbons of swarf from tangling, I've never found a way of breaking this with the tool, I used high speeds and threw the swarf as a continuous ribbon into the air and clear of work and machine.
|Thread: Level lathe set up|
I have enjoyed following this thread with the differing elements concerned. I trained at the Humber Motor Co., Coventry during the early 50's and was involved with the installation of a new machine shop for the Hillman Minx OHV engine. The largest machine was a horizontal broaching machine for machining 5 faces simultaneously on the cast iron engine block. This weighed in at about 200 tons, stood upon 3' of concrete, if I remember aright. Machine tools were "leveled" using steel wedges and a precision level. I do not recall any being bolted down. The in house foundry produced the cast iron castings and these were left to "weather" for 8 to 12 months. I subsequent machine shops the only item I ever bolted down were bar feeds for capstan lathes.
With a retirement workshop and Myford ML7 as lathe, I have mounted this on two pillars of concrete blocks. In a previous workshop I cast a concrete base but had problems with the shuttering as I had not calculated the not inconsiderable weight involved! I "leveled" with a builders level but used a laser mounted at the two extremes of the bed to remove twist. This worked well, with the opposite workshop wall being some 4 metres distance and the laser "spots" initially having about 75mm vertical separation. With the use of shims and holding down bolts this was reduced to zero. It may not be "level", but I believe it is aligned! No vibrations are detected in this set up.
|Thread: Photograph of Wolf Cub drill wanted|
This post has awakened a few memories! A Wolf Cub was my first "machine" tool, purchased for £4.19.6 with money earnt working as a temporary postman over Christmas of 1947. Parts were later added to turn it into a wood turning lathe and drill press. I was so proud!
|Thread: Cutting oil|
When in industry, I always bought cutting oil and other lubricants from Millers Oils, Brighouse. OK, we were buying some oils in 50 gal drums, but they always supplied me with 1L bottles of oils if I wanted.
Very helpful company, worth a try if you can call in to collect.
|Thread: Home made lathe stand - need help!|
If you have a concrete floor then might I suggest you look at concrete? I have my Myford mounted on two pillars of concrete blocks cemented together, and this absorbs any vibrations. I had, in another location, formed shuttering and poured a concrete base.
I am planning to mount a bench milling machine on a pedestal of hollow concrete blocks and then pour concrete to fill the hollows.
Post WW 2 there was quite a bit of discussion about manufacturing machine tool beds from concrete! Cheaper than steel and better at vibration absorbtion.
|Thread: which 3 or single phase motor for ML7|
I converted my ML7 to a three phase motor running off domestic supply via an ABB invertor about a year ago and have been very pleased with the results. Smoother running, ramped start and reverse, variable speed, and with a pulley change, top revs of 840.
If you are buying a three phase motor second hand, ensure that it is dual voltage, i.e. the motor plate mentions 220-240 and 420-440 volts. No wide experience of different makes of phase invertors, but I've had no problems with mine.
|Thread: Converting a Bridgeport from 3 phase to single|
Matt. I ran a Bridgeport with J head for many years off a single phase 240v supply by use of a phase converter. The same converter ran a 3hp compressor and a rather complex variable speed motor on a Holbrook 17 lathe.
The phase converter uses a transformer to up the voltage and capacitors to start the motor, which when running, generates the third phase. This is probably why you are advised to bypass contactors.
I used a slave motor, (cannot remember size), which I would switch on for starting - this meant 3 phases to the machine, and no problems with wiring through normal control box. With the Bridgeport this meant the head with both speeds, coolant pump and DRO.
With the compressor and lathe I could switch off the slave once the machine was running, but with the Bridgeport I had to keep the slave running. I don't know why, but the head motor made 'orrible noises with the slave off. This combination ran for about 15 years with no problems.
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